4.You're allowed up to three take-home samples per department, so go in on that hella expensive stuff.

You can have up to three samples from each of Sephora's main departments (fragrance, skincare, and color), which means you can totally try some products you might not normally be able to afford, according to The Krazy Coupon Lady.

7.Know Sephora's rewards program levels and what they can offer you.

There are three levels for Sephora's rewards program: Beauty Insider, VIB, and VIB Rouge. Everyone automatically qualifies to be a Beauty Insider, so if you sign up, you'll get a birthday gift (see: free makeup) and free beauty classes.

If you spend more than $350 a year, though, definitely get in on that VIB access to get additional exclusive savings and a makeover. Planning on spending more than $1,000 a year? You'll get the all-inclusive VIB Rouge membership, which gives you free two-day shipping on all orders and invites to events.

Regardless of what club you're in, you rack up points every time you purchase, which you can spend on gift sets and makeup, so definitely sign up.

8.If you plan on getting your makeup done by a professional more than three times during the year (hiiii, wedding season), get that VIB Rouge status.

OK, so you have to spend more than $1,000 to become a member, but hey, if you're shopping at Sephora all the time, it's nice to get unlimited free makeovers that would typically cost $75–100 each, according to Racked.

9.Get in on those free two-hour beauty classes.

If you're one of the bajillion people who haven't quite figured out this whole contouring thing, there's totally a class on that — and it's free! They also offer IRL tutorials on how to brow-shape, apply fake lashes, get smoky eyes (for day and night), and correct and conceal. You don't have to buy any makeup to participate, and you'll definitely get to walk away wearing some.

Listen, I know that tiny-ass version of your favorite mascara is cute as hell, but dudes, the price per ounce just isn't worth it, says Racked. Stock up on those free samples while you're in the store, and take those as your carry-on.

13.And those perfume samplers actually get you an additional free full bottle perfume.

If you love fragrance, you should definitely go the sampler route. This set has 15 perfumes for $65, which typically retails for $110. Also, this particular sampler includes a certificate to redeem for a full-size bottle of your favorite featured fragrance at no extra cost, according to Beautycon. (I BOLDED THAT BECAUSE IT IS INSANE, PEOPLE.)

You can pay $10 to get unlimited, free two-day shipping for a full year on any order — no matter how much it costs, according to Gorgeous In Grey. You also get a special overnight rate of just $5.95. If you're a VIB Rouge member, you can enroll for free. YAAASS.

19.And finally, don't be afraid to return stuff.

If you ended up hating that $18 lipstick, return it! Sephora allows you to return opened goods within 60 days as long as it's in a "gently used condition." Basically, don't set it on fire, and you'll be fine.